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post #1 of 2 (permalink) Old 05-31-02, 07:17 AM Thread Starter
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Location: Brisbane, Qld
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ok...when it comes to car audio...i know about a little as possible...i've been trying to find some info on the subs i have...coz no one has ever heard of PPI...but i finally have the info i was looking...(i think) can anyone tell me if they actually are good or not?

PRECISION POWER "300 Watts PPI Subwoofer". This 10-inch component features a 4-layer /Kapton voice coil former, 25 Hz - 250 Hz frequency response, 40 Qts total damping, 87.9 dB sensitivity, 17.83mm peak excursion, and 4-7/8" mounting depth. * 8 Ohm Rated

i got 2 of em in an enclosed approximately 1.5575 cubic foot that too small...they do have a beautiful crisp deep sound...but high volume is a problem...i really can't push them as much as i'd like to...they sort of make a shaking sound as if it's playing the next note before the previous note has had the chance to finish or something...i dunno..hard to explain...but...can anyone let me know what they think of this set up...and anything i can do i remedy the situation....thanks..
oh..i am running them bridged off a 4x50 watt amp (have an idea but not totally sure what that much power is each speaker getting?)...woot...just found info on the amp too...

V-Net 450 Series
400W (Max) - 4 Chnnel Power Amplifier - Maximum power output 100W x 4 ch - RMS output power 50W z 4ch at 0.05% THD, 4 ohm - MOSFET power supply - Tri-Mode speaker opertation - Built-in bridged capability - 2 ohm stable per channel @ 12 dB Bass Bosst @ 45Hz - Front 2ch: full/120Hz high pass filter selectable - Rear 2ch: full/80Hz low pass filter/+6dB Boost - Wverheating, speaker lead short protection circuit - Turn-On muting circuit (soft start) - High/Low level input built-in - Gold plated RCA jacks, speaker outputs and power terminals.


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post #2 of 2 (permalink) Old 05-31-02, 06:11 PM
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Age: 34
Posts: 1,388
Bass Crazy or SPHELL would probably know, I think Bass Crazy has a PPI amp from memory...

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